/*
 * DG (DG Gaming Engine)  - Server
 * Copyright (C) 2005  Bob Marks (marksie531@yahoo.com)
 * http://code.google.com/p/dng-gaming
 *
 * This program is free software; you can redistribute it and/or
 * modify it under the terms of the GNU General Public License
 * as published by the Free Software Foundation; either version 2
 * of the License, or (at your option) any later version.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program; if not, write to the Free Software
 * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.
 */
package com.dg.gaming.server.data.xml;

import com.dg.gaming.server.data.*;
import org.dom4j.*;

/**
 * Class for packing / unpacking a GameSummary class to and from XML.
 *
 * @author Bob Marks
 * @version Alpha 0.2.3
 */
public class GameSummaryXML {

    // XML element / attribute names
    private static final String XML_ELM_GAME_SUMMARY = "game_summary";
    private static final String XML_ATT_USERNAME = "username";
    private static final String XML_ATT_GAME = "game";
    private static final String XML_ATT_RATING = "rating";
    private static final String XML_ATT_WINS = "wins";
    private static final String XML_ATT_LOSES = "loses";
    private static final String XML_ATT_DRAWS = "draws";
    private static final String XML_ATT_STREAK = "streak";

    /**
     * Method for returning a game summary object from an
     * XML Element (dom4j).
     *
     * @param element
     * @return
     */
    public static GameSummary inflate(String game, long userid,
                                      Element element) {
        // Check this is the correct element
        if (!element.getName().equals(XML_ELM_GAME_SUMMARY)) {
            return null;
        }

        // retrieve variables from element
        String username = element.attributeValue(XML_ATT_USERNAME);
        int rating = Integer.parseInt(element.attributeValue(XML_ATT_RATING));
        int wins = Integer.parseInt(element.attributeValue(XML_ATT_WINS));
        int loses = Integer.parseInt(element.attributeValue(XML_ATT_LOSES));
        int draws = Integer.parseInt(element.attributeValue(XML_ATT_DRAWS));
        int streak = Integer.parseInt(element.attributeValue(XML_ATT_STREAK));

        // Create game summary object and add to UserInfo object
        return new GameSummary(game, userid, username, rating, wins, loses,
                               draws,
                               streak);
    }

    /**
     * Method for converting a gameSummary java object into an
     * XML Element (dom4j).
     *
     * @param gameSummary 		Game summary object.
     * @return                  Game summary object as XML "game_summary".
     */
    public static Element flatten(GameSummary gameSummary) {
        Element elm = DocumentHelper.createElement(XML_ELM_GAME_SUMMARY);
        elm.addAttribute(XML_ATT_GAME, gameSummary.getGameKey());
        elm.addAttribute(XML_ATT_RATING, String.valueOf(gameSummary.getRating()));
        elm.addAttribute(XML_ATT_WINS, String.valueOf(gameSummary.getWins()));
        elm.addAttribute(XML_ATT_LOSES, String.valueOf(gameSummary.getLoses()));
        elm.addAttribute(XML_ATT_DRAWS, String.valueOf(gameSummary.getDraws()));
        elm.addAttribute(XML_ATT_STREAK, String.valueOf(gameSummary.getStreak()));

        return elm;
    }
}
